Westchester County Executive Rob Astorino says he is closing in on picking a running mate to round out the statewide GOP ticket this fall, he said in a radio interview this morning.

“We are certainly in the final stages of this, and I’ve been looking over records and going in for discussions,” Astorino told Fred Dicker on his Talk-1300 show. “So I think that’s going to be narrowed down real quick, and somebody will be picked.”

Astorino didn’t get into specifics, but various names have surfaced as a potential lieutenant governor candidate for the Republicans, including Assemblywoman Jane Corwin and Assemblywoman Nicol Malliotakis, both of whom have publicly said they are not interested in the job.

The GOP’s LG will likely be unveiled before or during the Republican state convention in Rye on May 14.

On the Democratic side, Lt. Gov. Bob Duffy is rumored to not be in the mix to run again for the post alongside incumbent Democratic Gov. Andrew Cuomo.

Neither Cuomo or Duffy have disclosed whether Duffy will remain on the ticket, saying that decision is expected to come sometime this month.

The governor and lieutenant governor run separately in New York, which sometimes makes for an awkward marriage of a gubernatorial candidate with a number two they never wanted, most notably Mario Cuomo and Al Del Bello.

In 2010, Carl Paladino selected New York City Councilman Tom Ognibene as his running mate, but he did not receive as many votes as former Rep. Rick Lazio’s selection, Chautauqua County Executive Greg Edwards, forcing a reworking of the ticket.